US599310A - Henry robert angel - Google Patents
Henry robert angel Download PDFInfo
- Publication number
- US599310A US599310A US599310DA US599310A US 599310 A US599310 A US 599310A US 599310D A US599310D A US 599310DA US 599310 A US599310 A US 599310A
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- United States
- Prior art keywords
- ore
- angel
- mixing
- alkali metal
- heating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/001—Dry processes
- C22B7/004—Dry processes separating two or more metals by melting out (liquation), i.e. heating above the temperature of the lower melting metal component(s); by fractional crystallisation (controlled freezing)
Definitions
- zinc-blende or other sulfid ores of lead are mixed and heated with sulfate of soda (or it might be bisulfate of soda, sulfate of potash, or the like) and carbonaceous matter, preferably small coal.
- the process is carried out as follows: The ore is thoroughly calcined and four to six parts, by weight, are then intimately mixed with two parts of sulfate of soda and one part of small coal, the materials being first reduced to a granular condition. The mixture is then fused in a Siemens openhearth gas-furnace, care being taken that the flame does not come into contact with the charge, and the lead containing the greater part of the silver and gold is tapped out, the volatile metals, such as zinc, being collected in chambers. The remainder of the gold and silver are recovered by adding galena to the molten slag, or the Whole charge may be drawn from the furnace and cooled, the metals being separated from the slag by ordinary methods.
- the sulfate of soda and the coal may first be heated and rabbled together until they burn into a flame and assume a red-hot granular condition, whereupon the calcined ore, which has been separately heated, is added and the mixture rabbled under a moderate heat.
- the process can be carried on at a lower temperature, but more labor is required.
- I claim- K o l The process of extracting lead with other metals from its ores, consisting in mixing and heating the ore with an alkali metal sulfate and carbonaceous matter in substantially the proportions specified; viz., four to six parts by weight of ore to two parts of alkali metal sulfate, and one part of carbonaceous matter.
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- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Description
O UNITED PA. EEICE.
HENRY ROBERT ANGEL, OF LONDON, ENGLAND, ASSIGNOR OF ONE-HALF TO CHARLES HENRY THOMPSON, OF SAME PLACE.
EXTRACTION OF LEAD FROM ITS ORES.
SPECIFICATION forming part of Letters Patent No. 599,310, dated February 22, 1898.
Application filed May 22,1897. Serial No. 637;739- (No specimens.)
To all whom it may concern:
Be it known that I, HENRY ROBERT ANGEL, ship-owner, a subject of the Queen of Great Britain, residing at 7 St. Helens Place, in the city of London, England, have invented Improvements in the Extraction of Lead with other Metals from its Ores, of which the following is a specification.
According to this invention zinc-blende or other sulfid ores of lead are mixed and heated with sulfate of soda (or it might be bisulfate of soda, sulfate of potash, or the like) and carbonaceous matter, preferably small coal.
Preferably the process is carried out as follows: The ore is thoroughly calcined and four to six parts, by weight, are then intimately mixed with two parts of sulfate of soda and one part of small coal, the materials being first reduced to a granular condition. The mixture is then fused in a Siemens openhearth gas-furnace, care being taken that the flame does not come into contact with the charge, and the lead containing the greater part of the silver and gold is tapped out, the volatile metals, such as zinc, being collected in chambers. The remainder of the gold and silver are recovered by adding galena to the molten slag, or the Whole charge may be drawn from the furnace and cooled, the metals being separated from the slag by ordinary methods.
In place of mixing all three ingredients together before heating them the sulfate of soda and the coal may first be heated and rabbled together until they burn into a flame and assume a red-hot granular condition, whereupon the calcined ore, which has been separately heated, is added and the mixture rabbled under a moderate heat. By this means the process can be carried on at a lower temperature, but more labor is required.
It is not essential that the ore should be thoroughly calcined. Uncalcined or imperfectly calcined ore may be employed; but in this case sufficient oxid of zincsay one-fifth of the weight of the oreshould be added to carry off the sulfur. This oxid of zinc may be used over and over again as it is deposited in that form in the furnace-fiue.
I claim- K o l. The process of extracting lead with other metals from its ores, consisting in mixing and heating the ore with an alkali metal sulfate and carbonaceous matter in substantially the proportions specified; viz., four to six parts by weight of ore to two parts of alkali metal sulfate, and one part of carbonaceous matter.
2. The process of extracting lead with other metals from its ores, consisting in mixing and heating the ore with an alkali metal sulfate, carbonaceous matter and oxid of zinc.
3. The process of extracting lead with other metals from its ores, consisting in mixing and heating the ore with an alkali metal sulfate, carbonaceous matter and oxid of zinc in substantially the proportions specified; viz. ore, four to six parts by weight; alkali metal sulfate, two parts; carbonaceous matter, one part; oxid of zinc, one-fifth of the weight of the ore. 7o
4. The process of extracting lead with other metals from its ores, consistingin mixing and heating an alkali metal sulfate with carbonaceous matter, and then mixing and heating the mixture with the ore in substantially the proportions specified; viz., ore, four to six parts, by weight; alkali metal sulfate, two parts, and carbonaceous matter, one part.
5. The process of extracting lead with other metals from its ores, consisting in mixing and heating an alkali metal sulfate with carbonaceous matter, and then mixing and heating the mixture with the ore and oxid of zinc.
6. The process of extracting lead with other metals from its ores, consisting in mixing and heating an alkali metal sulfate with carbonaceous matter and mixing and heating the mixture with the ore and oxid of zinc in substantially the proportions specified; viz., ore, four to six parts, by Weight; alkali metal sul- 9o fate, two parts; carbonaceous matter, one part; oxid of zinc, one-fifth of the Weightof the ore.
HENRY ROBERT ANGEL.
lVitnesses:
ROBERT B.- RANsEoRD, WALTER J. SKEETEN.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US599310A true US599310A (en) | 1898-02-22 |
Family
ID=2667951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US599310D Expired - Lifetime US599310A (en) | Henry robert angel |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US599310A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4333763A (en) * | 1980-03-20 | 1982-06-08 | Asarco Incorporated | Low temperature, non-SO2 polluting, kettle process for separation of lead from lead sulfide-containing material |
| US4521247A (en) * | 1980-03-20 | 1985-06-04 | Asarco Incorporated | Low temperature, non-SO2 polluting, kettle process for separation of lead from lead sulfide-containing material |
| US20060012885A1 (en) * | 2003-12-15 | 2006-01-19 | Carl Zeiss Smt Ag | Projection objective having a high aperture and a planar end surface |
-
0
- US US599310D patent/US599310A/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4333763A (en) * | 1980-03-20 | 1982-06-08 | Asarco Incorporated | Low temperature, non-SO2 polluting, kettle process for separation of lead from lead sulfide-containing material |
| US4521247A (en) * | 1980-03-20 | 1985-06-04 | Asarco Incorporated | Low temperature, non-SO2 polluting, kettle process for separation of lead from lead sulfide-containing material |
| US20060012885A1 (en) * | 2003-12-15 | 2006-01-19 | Carl Zeiss Smt Ag | Projection objective having a high aperture and a planar end surface |
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